Carpenter&#39;s clamp.



E. J. KOBERT.

CARPENTERS CLAMP.

APPLICATION FILED APR. 9. 1915.

1,145,199. Pqtented July 6, 1915.

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APR COHWASHXNGTON D c EDWARD J. KOBEBT, OF WOODSIIDE, NEW YORK.

CARPENTERS CLAMP.

Specification of Letters Patent.

Patented July 6, 1915.

Application filed April 9, 1915. Serial No. 20,134.

T all whom it may concern:

Be it known that I, EDWARD J. KoBnR'r, a citizen of the United States,and residing at Woodside, Long Island, in the county of Queens and Stateof New York, have invented certain new and useful Improvements inCarpenters Clamps, of which the following is a specification, such aswill enable those skilled in the art to which it appertains to make anduse the same.

This invention relates to clamps of the class used by carpenters inmaking door frames and sash frames, picture frames, and other devices orarticles of this class; and the object thereof is to provide an improvedclamp of the class and for the purpose specified which is simple inconstruction, effective in operation, and may be ouickly and easilyattached to a supporting bar or board connected with a work-bench orsupported in any desired manner.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views. and in which Figure 1 is a plan view of my improvedclamp device; Fig. 2 a side view thereof with a part of the constructionbroken awa and, Fig. 3 a section on the line 3-3 of Fig. 2. i

In the accompanying drawing I have shown at a a supporting board or barhaving parallel sides and a flat top surface and which may be connectedwith an ordinary work-bench, or be supported in any desired way; and inthe practice of my invention, I provide a clamp of the class specifiedwhich comprises two parts I) and c.

The part 7) consists of a block-shaped attachment 6 adapted to bemounted on the board or bar a, and which is provided with a horizontaltubular barrel or keeper 7) through which is passed a screw 6* providedat its outer end with a head I) through which is passed a rod 6 by whichthe screw 72 is manipulated, and said screw is provided at its inner endwith a detachable block or head member I) which may be connectedtherewith in any desired manner.

The barrel 6 is provided with a. raised bearing 12 through which ispassed a bolt b, and to the opposite ends of which are pivoted side armsd, and the side arms d are connected with the bar a by a bolt 0 which isprovided at one end with a head 6 and at the opposite end with a thumbnut 6 The part c of the device consists of an abutting block which isalso mounted on the board or bar a, and provided with side arms 0 whichare connected with said block by a pin or bolt 0 and with the board orbar a by a bolt f provided at one end with a head f at the opposite endwith a thumb nut 7'. The bolts 6 and 0 are preferably both riveted attheir opposite ends and the arms of and o are thus permanently connectedwith the parts 6 and c and are always in position for use, and all thatis necessary is to connect them with the board or bar a as shown anddescribed.

In the use of this device in making a frame of any kind, such as a dooror door frame, a sash or sash frame, or a window frame, the said frameis placed between the abutting block a and the inner end or head of thescrew 7), and by turning said screw the frame may be securely clampedand held in the desired position for nailing or otherwise securing theparts thereof together, and it will be apparent that the arms (Z and cof the parts 6 and cmav be connected with the board or bar a indifferent positions, or may be adiusted on said board or bar into anydesired position or positions. all that is necessary being to providethe said board or bar with suitable holes or apertures as shown at athrough which the bolts 6 and f may be passed, and while I have shownthe preferred means for connecting the separate parts of my improvedclamp with the board or bar a and the preferred form of said separateparts, my invention is not limited thereto, and changes therein andmodifications thereof may be made, within the scope of the appendedclaims without departing from the spirit of my invention or sacrificingits advantages.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A carpenters clamp, comprising two parts adapted to be mounted on asuitable support, said parts being provided with side arms pivotallyconnected therewith and adapted to be pivotally connected'with saidsupport, and one of said parts being provided with a screw-shaft whichis passed horizontally therethrough and is adapted to operate inconnection with the other part to hold a workpiece.

said support.

2. A carpenters clamp, comprising two In testimony that I claim theforegoing parts adapted to be mounted on a support as my invention Ihave signed my name in 10 having parallel sides and a flat top surface,presence of the subscribing Witnesses this said parts being providedWith side arms 8th day of April 1915.

which are pivotally connected therewith, EDWARD J. KOBERT. and boltsadapted to be passed through the Witnesses: free ends of said side armsand through C. MULBEAVNY,

H. J. THOMPSON.

Copies of this patent may he obtainedfor five cents each, by addressingthe Qomn issioner of Eatents,

Washingtoml). G.

